While the values of the components and the layout of the PCB won't change, they may vary in appearance (ie, changing the brand of caps, different color/silkscreen PCB, etc), so your kit's parts may look slightly different than what's pictured throughout the guide. That's just fine! Everything will work the same.
- Printed circuit board (PCB): 1
- Plexiglass window pane: 1
- Electronics components: 255 pieces total!
- 9v snap, chips, switch: 24
- Capacitors: 64
- IC chip sockets: 21
- LEDs: 3 colors, 21 total
- Resistors: 83
- Speaker: 1
- Tactile switches: 20
- Trim potentiometers: 21
- Nuts and bolts: 12
If you're going the full open-source route and gathering all the parts by yourself, head over to the POLY555 from Scratch appendix, then come back here when you're done.
You'll need the following tools to assemble your POLY555:
- Soldering iron and solder for electronics
- Wire stripper or cutters
- Philips and flathead screwdrivers
- Chromatic instrument tuner or phone app
- Utility knife
- School glue
- 9v battery
- Multimeter for debugging
- PCB vice or “helping hands” holder
- “Solder sucker” or desoldering braid
- Tweezers or “dentist’s tools” for working with small components
- Patience, patience, patience
Give yourself plenty of time to put this together, at least 5 hours. There are a lot of components and things to solder!
I like to spread it out throughout the day and take lots of breaks!